There are 14 layouts listed on this site.
Rounders (classic Blogger template), ported to Mecha.
Sand Dollar (classic Blogger template), ported to Mecha.
Moto (classic Blogger template), ported to Mecha.
Scribe (classic Blogger template), ported to Mecha.
Minima (classic Blogger template), ported to Mecha.
A blogging theme for Bootstrap 4 suitable for affiliate marketers.